header {
    /* 适用于有宽度的块级，效果：水平居中 */
    margin: 0 auto;
    width: 1000px;
}

.header-line {
    height: 24px;
    background-color: #00b7ee;
}

.hearder-content {
    padding: 38px 76px 14px 72px;
    height: 116px;
    box-sizing: border-box;
}

.navigation {
    margin-left: 63px;
    padding-top: 38px;
}

.navigation>ul>li {
    position: relative;
    padding: 0 7px;
}

.navigation>ul>li:last-of-type {
    padding-right: 0;
}

.navigation a {
    color: rgb(3, 3, 3);
    font-size: 14px;
}

.navigation .active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 35%;
    display: block;
    width: 30%;
    height: 1px;
    background-color: #828282;
}

.search {
    padding-right: 7px;
    margin-top: 30px;
    height: 30px;
    border: 1px solid #000000;
}

.search>input {
    display: inline-block;
    border: none;
    outline: none;
    height: calc(100% - 2px);
    vertical-align: top;
}

.search-logo {
    display: inline-block;
    height: 100%;
    line-height: 30px;
}

.search-logo>img {
    vertical-align: middle;
}

.banner {
    position: relative;
    height: 400px;
    background-image: url('../images/bg_content1.jpg');
}

.banner .ban {
    width: 162px;
    height: 52px;
    font-size: 32px;
    font-family: '微软雅黑';
    font-weight: bold;
    color: #395571;
}

.banner1 {
    position: absolute;
    top: 72px;
    left: 280px;
}

.banner2 {
    position: absolute;
    top: 122px;
    left: 442px;
}

.banner3 {
    position: absolute;
    top: 194px;
    left: 604px;
}

.dot {
    position: absolute;
    top: 365px;
    left: 460px;
    width: 82px;
    height: 32px;
}

.dot ul li {
    display: inline-block;
    margin: 0 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: #395674;
    cursor: pointer;
}
.dot ul li.spe {
    background-color: rgba(122, 74, 21, 0.7); 
}

.dot ul li:hover {
    background-color: rgba(122, 74, 21, 0.7);
}

.dot ul li a {
    width: 16px;
    height: 16px;
    border-radius: 50%;
}

